Derrick-frame



(No Model.)

A. 0. WILSON. DERRICK FRAME.

No. 566,364. Patented Aug. 25, 1896.

(ll/Il/l/II/I/II/I/I/ NrrEn AMOS C. WILSON, OF BUTLER, PENNSYLVANIA.

DERRlCK-FRAM E.

SPECIFICATION forming part of Letters Fatent N 0. 566,364, dated August25, 1896. Application filed August 16, 1895. Serial No. 559,568. (Nomodel.)

To all whom it may concern.-

Be it known that I, AMOS 0. WILSON, a citizen of the United States,residing at Butler, in the county of Butler and State of Pennsylvania,have invented certain new and useful Improvements in Derrick-Frames; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to an improved derrickframe; and it consists inconnecting a series of standards by couplings provided with two T-shapedslots at right angles to each other. Each of these slots is designed tofit the T ends of girders. I further provide perforated cars at theupper and lower ends of the flanges forming the sides of the T-slots.Connecting-rods are designed to be secured between the perforated earsfor the purpose of bracing the frame.

The invention further consists in details of construction which will bedescribed hereinafter and clearly pointed out in the claim.

In the drawings, Figure 1 is a side elevation of a derrick-frameconstructed in accordance with my invention. Fig. 2 is a plan view ofone of the couplings or joints used in the construction of my invention.Fig. 3 is a side View thereof. Fig? 4. is a detail plan view of a girderand socket. Fig. 5 is a detail plan view of a socket and brace-rod. Fig.6 is a detail view. Fig. 7 is a detail section on the line 7 7 of Fig.1.

Similar letters of reference indicate like parts in all the figures.

A A indicate the different sections of upright standards of a derrick-fraine, connected at their ends to like sections by couplings a.The couplings are preferably circular in crosssection and haveprojecting outwardly and at right angles to each other two pairs offlanges a, between which are formed T-slots a A flange 60 connects theside flanges and forms the bottom of the T-slots. At the upper and lowerportions of the flange a are formed ears or, provided with perforationso Projections a are formed within the circular portion of the couplings,against which the sections forming the standards abut. Socketpieces f,having T ends, fit within the T-slots in the couplings, andthe oppositeends of the sockets are provided with screw-threads, into which screwthe threaded ends of girders d. The flat ends a of socket-pieces c aresecurely held between the ears a and are held therein by bolts 0*.Cross-braces e are screwed into the enlarged screwthreaded ends of thesocket-pieces 0. Lower girders g .are provided, having T ends which fitWithin corresponding slots in the couplings g. Braces 9 connect thesecross-bars. Said braces are screwed into caps or couplings 9 which arescrewed to the lower girders.

WVhen the derrick-frame has reached the desired height, I provide asuitable cap,which consists of four angular plates h, provided withdownwardly-proj ectin g lugs h, which fit within the uppermostcouplings. Connecting-plates 7L connect the angular plates and securelyhold the parts together.

It is thought the advantages of my invention will be apparent. \Vhen itis desired to construct a derrick-frame, the lower girders are first putin place and sections of standards are placed within the couplings, andupon the upper ends of the sections of the first set of standards areplaced a second series of couplings, from which extend cross bars, whichare secured by bolts to the ears on the side of the couplings placedabove the aforesaid set. When the third series of couplings have beenplaced in position, the girders d are inserted in the slots a andsecurely unite the parts. Gross-pieces e are then placed in position andconnected to the next corresponding set of cars on the succeedingcouplings. When the derrick-frame has reached the desired height, thecap is put in place, and a derrick-frarne is constructed which is simplein construction and is easily and conveniently put up or taken down.

The various parts are made of pipe, but, if desired, solid bars may beused.

IVith a derrick -fra1ne constructed as described it will be impossiblefor the parts to rust and thus necessitate the breaking of the variousdetails when it is desired to take down the derrick-frame in order toremove it to other parts or store it.

I desire it to be understood that I reserve the right to make changes inthe details of construction, such as scouring the girders with pins andlikewise the brace-rods t0 the brace-pieces also fitting in said groovesand pins securing said braces therein, said coupling being also providedwith interior projections, adapted to receive and support the uprightsof the derrick, substantially as and for the purpose set forth.

AMOS 0. WILSON. \Vitnesses:

ALBERT L. BoWsER, Mrs, N. 0. CORE.

